MICROSTRIP CIRCULATOR WHEREIN RELATED MICROSTRIP PATTERNS ARE DISPOSED ON OPPOSING SURFACES OF DIELECTRIC SUBSTRATE

摘要

This invention relates to a microstrip circulator used for steering electrical signals in predetermined directions along particular paths in a controlled manner. A particular embodiment of a microstrip circulator according to the present invention utilizes a non-ferrite dielectric substrate having metal film applied to both major surfaces of the substrate. The distributed electronic components of the circulator are formed in a circular configuration in the metal film on both major surfaces. A permanent magnet is spaced on one major surface directly over the circular configuration of electronic components and a ferrite disc is placed on the opposite major face directly opposite the magnet. A conductive groundplane is then applied to the outer surface and edges of the ferrite disc.